"National security officials worried by rapid loss of Arctic summer sea ice overlook threat of permanent global food shortages" http://www.guardian.co.uk/envir

"National security officials worried by rapid loss of Arctic summer sea ice overlook threat of permanent global food shortages" http://www.guardian.co.uk/environment/earth-insight/2013/may/02/white-house-arctic-ice-death-spiral http://www.guardian.co.uk/environment/earth-insight/2013/may...